Peroxisome Biogenesis Disorder 7b, also known as pbd7b, is related to peroxisome biogenesis disorder 7a and usher syndrome. An important gene associated with Peroxisome Biogenesis Disorder 7b is PEX26 (Peroxisomal Biogenesis Factor 26). Affiliated tissues include liver and brain, and related phenotypes are global developmental delay and sensorineural hearing impairment